Concrete form



Nov E5, EQ2? ,649,205

G. w. WROCKLAGE CONCRETE FORM Filed Feb, 21. 1927 2 Sheets-Sheet l ANov.. 15, 1927.

1,649,205 G. W. WROCKLAGE CONCRETE FORM Filed Feb,` 2l, 1927 A 2 Sheets-Sheet 2 Patented Nev. l5, i927.

illill'FFi S'Faplfhi Fatpllihiii GEORGE W. WTRGGKLAGE, 0F HACKENSJMK, .blFiN JERSEY.

CONCRETE FORM.

Appncation sied February rFhis invention relates to improvements in concrete forms and has for an object to pro vide a metal form for concrete, which may be readily removed.

yAnother object is to provide a metal form for concrete, which may be set up in any size desired.

Still another object is to for concrete, which may be crete for reenforcement.

With these and other have invented an improved crete, illustrated in the accompanying ings, in which:

Figure l is an elevational vention including upright re bers.

Figure 2 is a bottom plan provide a form left in the conobjects in view, l

form for conrawview of my inenforcing memview thereof',

Figure 3 is a detail view of the attaching handle and Figure 4c is a sectional view, taken on line 4l el of Figure 3.

Figure 5 is an enlarged perspective view of a portion of one of the handles.

Figures 6 and 7 are details of one of the latch devices and the locking wedge.

Figure 8 are enlarged perspective views of one pair of the pivot lugs of the handle members.

Figure 9 are enlarged perspective views of one pair of the latch devices.

Figure 10 is a view of one ving members illustrating a the construction.

of the reenforcmodification in Like reference characters indicate like parts throughout the following specification and in the several views in the drawings, in which l represents the steel reenforcing inembers, which have a pair of prongs 2, formed at an angle adjacent each Aforcing members.

end of said reen The frame is formed of flat metal pieces 3 which overlap each other as shown at l, and against one of the reenforcing in endwise. A bifurcated lug each of which embers l grests 5 is formed on each of the metal pieces 3 and between said bifurcations, an elongated slot 6 is provided in said metal pieces.

to each of said bifurcated lugs, and

gaging member S is formed Said engaging member 3 is A handle 7 is pivoted an en- 4on said handle. a segment of a circle, the center of said circle being at the pivot point 9.

Said engaging member is inserted through the slot 6, and a iinger 10 which is formed thereon is placed in engagenient with of the prongs 2 on one of the 21, 1927. Serial N0. 169,316.

reenforcing members l. rlhe handle 7 eX- tends along the metal pieces 3 and is secured thereto by means of a latch 1l, formed on each of the metal pieces 3` said latches being formed of a pair of angle irons spaced apart with their ends facing each other. rIwo of the handles 7 are secured in each of the latches 1l, being inserted one at a time and forced apart by a wedge v'l2 to hold them rigid. lWhen the handle 7 is swung ont-- wardly from the metalpieces 3, the engaging member 8 rotates on its axis 9, and is thus extracted from the concrete.v Said engaging member 8 is relatively wedge shaped, its sides diverging from the fingerlO, that it may be easily removed from the concrete. After the handles 7 have been moved and engaging members 8 have been removed from the concrete, the metal pieces 3 may be removed if desired.

The handles 7 are not removed from the fiat metal pieces 3, but are simply turned away from the metal pieces on the pivot or pin 9 and thus 3 is withdrawn from the concrete. rllhe metal form is then removable from the concrete wall. l

The members 1 may be of any length desired to correspond to walls or lioor beams of different sizes, and differently spaced. I preferred members 1 may be formed of a plurality of sections united by rivets or other means as shown in Figure 10. i

TWith this device a form of any desired dimension may be provided through easy adjustment of the members certain of which may remain in the structure, if desired, for reenforcing purposes.

Having described my invention, that which l claim to be new, and desire to secure by Letters Patent, is:

l. A concrete form, including a plurality of metal pieces, a plurality of reenforcing members, and means for securing said metal pieces to said reenforcing members, said means including a handle pivoted to each of` said metal pieces.

Q. A concrete form. including a plurality of metal pieces. a plurality of reenforcing members, and means for securing said metaA piecesy to said reenforcing members, said means including a handle pivoted to each of said metal pieces, and an engaging mein ber formed on each of said handles.

A concrete form, including a plurality ci metal pieces, a plurality ci reenforeing members, and means for seeutii g saidrnetad pieces to said reenforeing members, said means including a handle pivoted to each of said metal pieces7 an engaging member formed on each of said handles, a plurality of prongs formed on said reenforcing members, and a finger on each of said engaging members to engage one ot' said prongs.

4. A concrete form, including a plurality of metal pieces, a plurality of reenforcing members, and means for securing said metal pieces to said reentorcing members, said means including a handle pivoted to one of said metal pieces, and being attachable to two of said metal pieces.

5. A concrete form, including a plurality of metal pieces,y a plurality of reenforcing members, and means for securing said meta pieces to said reent'orcing members, Said means including a handle pivoted to one of said metal pieces, a segment of a circle formed on said handle, and a linger formed on said segment.

(5. A concrete form, including a plurality of metal pieces, a plurality ot reenl'orcing members, and means Afor securing said metal pieces to said reenforcing members, .said means including a segment of a circle pivoted to one of said metal pieces, and a linger formed on said segment, the sides of said segment direrging from said finger.

7. A concrete form, including a plurality of reen'lorcing members, a pair ot' prongs adjacent each end of said members, a flat metal piece resting against each of said members, a handle secured to two and pivoted to one of said metal pieces, a segment ot a circle l'ormed on each of said handles extending through a slot in one of said metal pieces and engaging one of Said prongs, said pivot being the axis for said segment.

In testimony whereof l allix my signature.

GEORGE W. WROCKLAGE. 

